According to the federal Bureau of Justice Statistics, of the estimated 206,300 sentenced prisoners under state jurisdiction serving time for drug offenses at year-end 2014, 67,800 were non-Latino whites (32.9%), 68,000 were non-Latino African Americans (33.0%), 28,800 were Hispanic (7.2%). The ethnicity of the remaining 41,700 is not reported, meaning they could have been of another ethnicity, multiracial, or unknown.

Source

E. Ann Carson, PhD, and Elizabeth Anderson. Prisoners In 2015. Washington, DC: US Dept of Justice Bureau of Justice Statistics, Dec. 2016, NCJ250229, p. 30, Appendix Table 5.0
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